Merge pull request #2061 from happy5214/bump-hed-validator-3.15.4

Bump hed-validator to v3.15.4

Author: rwblair

bids-validator/package.json

@@ -45,7 +45,7 @@
     "date-fns": "^3.6.0",
     "events": "^3.3.0",
     "exifreader": "^4.23.3",
-    "hed-validator": "^3.15.3",
+    "hed-validator": "^3.15.4",
     "ignore": "^5.3.1",
     "is-utf8": "^0.2.1",
     "jest": "^29.7.0",